With so many people taking so many medications, dry mouth is becoming a larger problem. The lack of saliva causes a significant increase in tooth decay and, therefore, needs attention. Commercial saliva substitutes help and so does drinking lots of water. We also increase daily use of fluoride in custom trays and the use of Prevident toothpaste which is five times stronger than regular toothpaste. We also encourage the use of Xylitol chewing gum which stimulates saliva and kills the cavity forming bacterial. Regular check-ups and excellent oral hygiene are very important for people with this problem.